A California startup behind smartphone software accused of snooping on users stepped up the defense of its creation on Friday in the face of freshly filed lawsuits. By Friday, lawsuits had been filed in three US states against software maker...

If you own a smartphone, your device knows who your friends and family are. It knows where you are, where you’re going and, chances are, what you’ll be doing next. It even knows what you’re typing before you type it. But, what...